Implement remote_pid_to_exec_file using qXfer:exec-file:read
This commit adds a new packet "qXfer:exec-file:read" to the remote protocol that can be used to obtain the pathname of the file that was executed to create a process on the remote system. Support for this packet is added to GDB and remote_ops.to_pid_to_exec_file is implemented using it. gdb/ChangeLog: * target.h (TARGET_OBJECT_EXEC_FILE): New enum value. * remote.c (PACKET_qXfer_exec_file): Likewise. (remote_protocol_features): Register the "qXfer:exec-file:read" feature. (remote_xfer_partial): Handle TARGET_OBJECT_EXEC_FILE. (remote_pid_to_exec_file): New function. (init_remote_ops): Initialize to_pid_to_exec_file. (_initialize_remote): Register new "set/show remote pid-to-exec-file-packet" command. * NEWS: Announce new qXfer:exec-file:read packet. gdb/doc/ChangeLog: * gdb.texinfo (Remote Configuration): Document the "set/show remote pid-to-exec-file-packet" command. (General Query Packets): Document the qXfer:exec-file:read qSupported features. Document the qXfer:exec-file:read packet.
This commit is contained in:
parent
e0d86d2cbd
commit
c78fa86a21
|
@ -1,3 +1,16 @@
|
|||
2015-04-17 Gary Benson <gbenson@redhat.com>
|
||||
|
||||
* target.h (TARGET_OBJECT_EXEC_FILE): New enum value.
|
||||
* remote.c (PACKET_qXfer_exec_file): Likewise.
|
||||
(remote_protocol_features): Register the
|
||||
"qXfer:exec-file:read" feature.
|
||||
(remote_xfer_partial): Handle TARGET_OBJECT_EXEC_FILE.
|
||||
(remote_pid_to_exec_file): New function.
|
||||
(init_remote_ops): Initialize to_pid_to_exec_file.
|
||||
(_initialize_remote): Register new "set/show remote
|
||||
pid-to-exec-file-packet" command.
|
||||
* NEWS: Announce new qXfer:exec-file:read packet.
|
||||
|
||||
2015-04-17 Gary Benson <gbenson@redhat.com>
|
||||
|
||||
* nat/linux-procfs.h (linux_proc_pid_to_exec_file):
|
||||
|
|
4
gdb/NEWS
4
gdb/NEWS
|
@ -106,6 +106,10 @@ hwbreak stop reason
|
|||
vFile:fstat:
|
||||
Return information about files on the remote system.
|
||||
|
||||
qXfer:exec-file:read
|
||||
Return the full absolute name of the file that was executed to
|
||||
create a process running on the remote system.
|
||||
|
||||
* The info record command now shows the recording format and the
|
||||
branch tracing configuration for the current thread when using
|
||||
the btrace record target.
|
||||
|
|
|
@ -1,3 +1,10 @@
|
|||
2015-04-17 Gary Benson <gbenson@redhat.com>
|
||||
|
||||
* gdb.texinfo (Remote Configuration): Document the "set/show
|
||||
remote pid-to-exec-file-packet" command.
|
||||
(General Query Packets): Document the qXfer:exec-file:read
|
||||
qSupported features. Document the qXfer:exec-file:read packet.
|
||||
|
||||
2015-04-17 Gary Benson <gbenson@redhat.com>
|
||||
|
||||
* gdb.texinfo (set sysroot): Document that "set sysroot" also
|
||||
|
|
|
@ -19791,6 +19791,10 @@ are:
|
|||
@tab @code{Z4}
|
||||
@tab @code{awatch}
|
||||
|
||||
@item @code{pid-to-exec-file}
|
||||
@tab @code{qXfer:exec-file:read}
|
||||
@tab @code{attach}, @code{run}
|
||||
|
||||
@item @code{target-features}
|
||||
@tab @code{qXfer:features:read}
|
||||
@tab @code{set architecture}
|
||||
|
@ -36016,6 +36020,11 @@ These are the currently defined stub features and their properties:
|
|||
@tab @samp{-}
|
||||
@tab Yes
|
||||
|
||||
@item @samp{qXfer:exec-file:read}
|
||||
@tab No
|
||||
@tab @samp{-}
|
||||
@tab Yes
|
||||
|
||||
@item @samp{qXfer:features:read}
|
||||
@tab No
|
||||
@tab @samp{-}
|
||||
|
@ -36219,6 +36228,10 @@ packet (@pxref{qXfer btrace read}).
|
|||
The remote stub understands the @samp{qXfer:btrace-conf:read}
|
||||
packet (@pxref{qXfer btrace-conf read}).
|
||||
|
||||
@item qXfer:exec-file:read
|
||||
The remote stub understands the @samp{qXfer:exec-file:read} packet
|
||||
(@pxref{qXfer executable filename read}).
|
||||
|
||||
@item qXfer:features:read
|
||||
The remote stub understands the @samp{qXfer:features:read} packet
|
||||
(@pxref{qXfer target description read}).
|
||||
|
@ -36533,6 +36546,16 @@ Return a description of the current branch trace configuration.
|
|||
This packet is not probed by default; the remote stub must request it
|
||||
by supplying an appropriate @samp{qSupported} response (@pxref{qSupported}).
|
||||
|
||||
@item qXfer:exec-file:read:@var{annex}:@var{offset},@var{length}
|
||||
@anchor{qXfer executable filename read}
|
||||
Return the full absolute name of the file that was executed to create
|
||||
a process running on the remote system. The annex specifies the
|
||||
numeric process ID of the process to query, encoded as a hexadecimal
|
||||
number.
|
||||
|
||||
This packet is not probed by default; the remote stub must request it,
|
||||
by supplying an appropriate @samp{qSupported} response (@pxref{qSupported}).
|
||||
|
||||
@item qXfer:features:read:@var{annex}:@var{offset},@var{length}
|
||||
@anchor{qXfer target description read}
|
||||
Access the @dfn{target description}. @xref{Target Descriptions}. The
|
||||
|
|
35
gdb/remote.c
35
gdb/remote.c
|
@ -1252,6 +1252,7 @@ enum {
|
|||
PACKET_vFile_fstat,
|
||||
PACKET_qXfer_auxv,
|
||||
PACKET_qXfer_features,
|
||||
PACKET_qXfer_exec_file,
|
||||
PACKET_qXfer_libraries,
|
||||
PACKET_qXfer_libraries_svr4,
|
||||
PACKET_qXfer_memory_map,
|
||||
|
@ -3963,6 +3964,8 @@ static const struct protocol_feature remote_protocol_features[] = {
|
|||
{ "PacketSize", PACKET_DISABLE, remote_packet_size, -1 },
|
||||
{ "qXfer:auxv:read", PACKET_DISABLE, remote_supported_packet,
|
||||
PACKET_qXfer_auxv },
|
||||
{ "qXfer:exec-file:read", PACKET_DISABLE, remote_supported_packet,
|
||||
PACKET_qXfer_exec_file },
|
||||
{ "qXfer:features:read", PACKET_DISABLE, remote_supported_packet,
|
||||
PACKET_qXfer_features },
|
||||
{ "qXfer:libraries:read", PACKET_DISABLE, remote_supported_packet,
|
||||
|
@ -9035,6 +9038,11 @@ remote_xfer_partial (struct target_ops *ops, enum target_object object,
|
|||
len, xfered_len,
|
||||
&remote_protocol_packets[PACKET_qXfer_btrace_conf]);
|
||||
|
||||
case TARGET_OBJECT_EXEC_FILE:
|
||||
return remote_read_qxfer (ops, "exec-file", annex, readbuf, offset,
|
||||
len, xfered_len,
|
||||
&remote_protocol_packets[PACKET_qXfer_exec_file]);
|
||||
|
||||
default:
|
||||
return TARGET_XFER_E_IO;
|
||||
}
|
||||
|
@ -11642,6 +11650,29 @@ remote_load (struct target_ops *self, const char *name, int from_tty)
|
|||
generic_load (name, from_tty);
|
||||
}
|
||||
|
||||
/* Accepts an integer PID; returns a string representing a file that
|
||||
can be opened on the remote side to get the symbols for the child
|
||||
process. Returns NULL if the operation is not supported. */
|
||||
|
||||
static char *
|
||||
remote_pid_to_exec_file (struct target_ops *self, int pid)
|
||||
{
|
||||
static char *filename = NULL;
|
||||
char annex[9];
|
||||
|
||||
if (packet_support (PACKET_qXfer_exec_file) != PACKET_ENABLE)
|
||||
return NULL;
|
||||
|
||||
if (filename != NULL)
|
||||
xfree (filename);
|
||||
|
||||
xsnprintf (annex, sizeof (annex), "%x", pid);
|
||||
filename = target_read_stralloc (¤t_target,
|
||||
TARGET_OBJECT_EXEC_FILE, annex);
|
||||
|
||||
return filename;
|
||||
}
|
||||
|
||||
static void
|
||||
init_remote_ops (void)
|
||||
{
|
||||
|
@ -11691,6 +11722,7 @@ Specify the serial device it is connected to\n\
|
|||
remote_ops.to_stop = remote_stop;
|
||||
remote_ops.to_xfer_partial = remote_xfer_partial;
|
||||
remote_ops.to_rcmd = remote_rcmd;
|
||||
remote_ops.to_pid_to_exec_file = remote_pid_to_exec_file;
|
||||
remote_ops.to_log_command = serial_log_command;
|
||||
remote_ops.to_get_thread_local_address = remote_get_thread_local_address;
|
||||
remote_ops.to_stratum = process_stratum;
|
||||
|
@ -12219,6 +12251,9 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL,
|
|||
add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_auxv],
|
||||
"qXfer:auxv:read", "read-aux-vector", 0);
|
||||
|
||||
add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_exec_file],
|
||||
"qXfer:exec-file:read", "pid-to-exec-file", 0);
|
||||
|
||||
add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_features],
|
||||
"qXfer:features:read", "target-features", 0);
|
||||
|
||||
|
|
|
@ -204,7 +204,12 @@ enum target_object
|
|||
/* Branch trace data, in XML format. */
|
||||
TARGET_OBJECT_BTRACE,
|
||||
/* Branch trace configuration, in XML format. */
|
||||
TARGET_OBJECT_BTRACE_CONF
|
||||
TARGET_OBJECT_BTRACE_CONF,
|
||||
/* The pathname of the executable file that was run to create
|
||||
a specified process. ANNEX should be a string representation
|
||||
of the process ID of the process in question, in hexadecimal
|
||||
format. */
|
||||
TARGET_OBJECT_EXEC_FILE,
|
||||
/* Possible future objects: TARGET_OBJECT_FILE, ... */
|
||||
};
|
||||
|
||||
|
|
Loading…
Reference in New Issue